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Reduction intermodulation distortion in interferometric optical modulators.

L M Johnson, H V Roussell

|September 12, 2009

Summary

This summary is machine-generated.

This study introduces a dual-polarization technique to reduce intermodulation distortion in integrated-optic interferometric modulators. By balancing TE and TM optical power, significant distortion reduction was achieved without compromising modulation depth.

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Area of Science:

Photonics
Optical Engineering
Materials Science

Background:

Intermodulation distortion is a significant issue in integrated-optic interferometric modulators.
Existing techniques for distortion reduction often compromise modulator performance.

Purpose of the Study:

To describe a novel dual-polarization technique for mitigating intermodulation distortion.
To evaluate the effectiveness of this technique in reducing distortion while managing modulator sensitivity.

Main Methods:

Implementation of a dual-polarization approach in integrated-optic interferometric modulators.
Adjustment of the relative power between transverse electric (TE) and transverse magnetic (TM) optical modes.
Testing with a Titanium-indiffused Lithium Niobate (Ti:LiNbO3) device.

Main Results:

Demonstrated significant reduction in intermodulation distortion, up to 21 dB.
Showcased the trade-off between distortion reduction and modulator sensitivity.
Confirmed the technique's efficacy in achieving a given optical modulation depth.

Conclusions:

The dual-polarization technique offers an effective method for reducing intermodulation distortion in integrated-optic modulators.
Careful adjustment of TE and TM power allows for optimized performance.
This method presents a viable solution for improving modulator fidelity in photonic systems.